Merge pull request #270 from elferherrera/plugins

Plugins for engine q

crates/nu-command/src/core_commands/mod.rs

@@ -9,6 +9,8 @@ mod hide;
 mod if_;
 mod let_;
 mod module;
+mod register;
+mod run_plugin;
 mod source;
 mod use_;
 
@@ -23,5 +25,7 @@ pub use hide::Hide;
 pub use if_::If;
 pub use let_::Let;
 pub use module::Module;
+pub use register::Register;
+pub use run_plugin::RunPlugin;
 pub use source::Source;
 pub use use_::Use;

crates/nu-command/src/core_commands/register.rs

@@ -0,0 +1,34 @@
+use nu_protocol::ast::Call;
+use nu_protocol::engine::{Command, EngineState, Stack};
+use nu_protocol::{PipelineData, Signature, SyntaxShape};
+
+#[derive(Clone)]
+pub struct Register;
+
+impl Command for Register {
+    fn name(&self) -> &str {
+        "register"
+    }
+
+    fn usage(&self) -> &str {
+        "Register a plugin"
+    }
+
+    fn signature(&self) -> nu_protocol::Signature {
+        Signature::build("register").required(
+            "plugin",
+            SyntaxShape::Filepath,
+            "location of bin for plugin",
+        )
+    }
+
+    fn run(
+        &self,
+        _engine_state: &EngineState,
+        _stack: &mut Stack,
+        _call: &Call,
+        _input: PipelineData,
+    ) -> Result<nu_protocol::PipelineData, nu_protocol::ShellError> {
+        Ok(PipelineData::new())
+    }
+}

crates/nu-command/src/core_commands/run_plugin.rs

@@ -0,0 +1,30 @@
+use nu_protocol::ast::Call;
+use nu_protocol::engine::{Command, EngineState, Stack};
+use nu_protocol::{PipelineData, Signature};
+
+#[derive(Clone)]
+pub struct RunPlugin;
+
+impl Command for RunPlugin {
+    fn name(&self) -> &str {
+        "run_plugin"
+    }
+
+    fn usage(&self) -> &str {
+        "test for plugin encoding"
+    }
+
+    fn signature(&self) -> nu_protocol::Signature {
+        Signature::build("run_plugin")
+    }
+
+    fn run(
+        &self,
+        _context: &EngineState,
+        _stack: &mut Stack,
+        _call: &Call,
+        _input: PipelineData,
+    ) -> Result<nu_protocol::PipelineData, nu_protocol::ShellError> {
+        Ok(PipelineData::new())
+    }
+}

crates/nu-command/src/default_context.rs

@@ -72,8 +72,10 @@ pub fn create_default_context() -> EngineState {
             Mv,
             ParEach,
             Ps,
+            Register,
             Range,
             Rm,
+            RunPlugin,
             Select,
             Size,
             Split,